this is what it looks like on the street. the cease fire health method. interruption has two steps -- detection from sources of information in the community, sources of information elsewhere, including in a hospital. they are trained in how to persuade an interrupt. changing the thinking of -- is the job of outreach workers. and then changing the underlying norm through a number of methods that community managers put into place, including responses to every shooting, using multiple messages, the clergy, a public education campaign. if you put this into place, in this community, shootings over time, easy or rapid reduction. then when the program got doubled, further drops and interrupters added. this is a community that went from 30 killings to three. we have one from 40 to 6.